GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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2answers
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Configuring GRUB to choose different OS when inside VM

On my laptop, I've got a dual-boot configuration with Windows 7 and Linux OSes installed. I am also using Linux via Oracle VirtualBox (through raw VMDK file) when working in Windows. Since I have ...
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4answers
14k views

I can't boot to Ubuntu after installing Windows 7

I installed Ubuntu 10.04 and it is working properly, but today I installed Windows 7 to another partition, and now I did not get any boot menu and automatically Windows is working fine still. Is ...
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2answers
4k views

Why does Grub2 have a Memory test ?

I was previously using Ubuntu Hardy 8.04 and now using Ubuntu Karmic 9.10. I am somewhat offended by the memory tests at the Grub2 start-up ? Why are they there ? Do I really need memory tests at ...
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2answers
5k views

How can I discover which bootloader is installed where?

On a Debian Linux box, I'm running into a very strange situation where after power-on, GRUB fails with the error "no such partition", but if I then hit the reset button, it boots normally. I'm trying ...
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2answers
1k views

3TB SATA hard drives into an old Linux system

I have a 3 year old PC with 4 internal SATA ports. My old SATA hard drives, all smaller than 2TB, work fine. If I buy a 3TB SATA hard drive, will it work in Linux? Will Linux with GRUB be able boot ...
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2answers
1k views

How can I take a screenshot of the GRUB menu?

How can I take a screenshot like this? I tried pressing Prnt Scrn, and then trying to paste it in MS Paint after booting to Vista, but it did not work.
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2answers
2k views

Ubuntu dual-boot installation Grub error 18

I'm trying a dual-boot installation of Ubuntu 9.04 parallel to an exisiting Windows XP. On first Ubuntu boot I get a Grub error 18. As I already found out the reason therefore is a unfortunate ...
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2answers
1k views

dd to clone 2 hard drives with 2 OSes and an encrypted partition

So, I have a question with this complex back-up process. My computer has a 32GB SSD, where Ubuntu 13.10 and all programs that run on that system are located. There is only one partition on that drive, ...
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2answers
2k views

How can I specify a different disk to be root in grub.cfg when running grub-mkconfig (from script/noninteractively)?

I am setting up an automated installer-system to install customized Ubuntu 12 and other operating systems onto disks, which will be removed and then permanently installed into new computers. The ...
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2answers
2k views

How to load previous kernel via ssh?

I work remotely on my work computer. I am also the root of the workstation that I am sharing with my colleague. Yesterday, I upgraded the kernel to 2.6.31-17 when asked by the update manager but ...
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votes
3answers
5k views

Linux partition deleted, GRUB no longer boots

My notebook computer came with Vista and I installed Ubuntu on 2 partitions and kubuntu on another partition. After a while, I wanted to delete one of the Ubuntu partition, so I did it in Vista's ...
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8answers
495 views

Install Ubuntu to drive B without impacting drive A

Simple question, I have two drives, Drive A and Drive B. I have Windows XP installed to Drive A and I want to install Ubuntu to Drive B. Is there a way to install Ubuntu to Drive B without it ...
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3answers
24k views

Repair grub mbr and /boot using ubuntu 9.04 live CD

I have broken my boot sequence on my XP/Vista/Ubuntu box. I wish to restore the system back to the way that Ubuntu 9.04 (last installed OS) had it setup. I want to do only the mbr and /boot on the ...
3
votes
2answers
8k views

Dual-boot archlinux and Windows 7 using grub-bios

How can i add windows to the boot menu when using grub-bios. I couldn't find menu.lst file in my boot/grub directory. My bootloader is on /dev/sda1. Windows is on /dev/sda2, root and home are on /dev/...
3
votes
3answers
1k views

Is this Hard Drive dead?

Okay, so I have a hard drive which I have run into problems with. I am dual-booting Windows 7 and Ubuntu 12.04. Recently I have been getting random crashes in both Windows 7 and Ubuntu, but much more ...
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3answers
9k views

Triple booting Windows 8 Consumer Preview with Windows 7 and Ubuntu 11.10

I already have Windows 7 and Ubuntu 11.10 installed on my laptop, and would like to add Windows 8 Consumer Preview to that list. Here's some information which may be relevant to this question: The ...
3
votes
1answer
6k views

Boot non EFI MS-DOS Windows 7 partition with grub2-gpt

I have the following setup: UEFI Asus Motherboard GPT TABLE and Ubuntu on /dev/sdb MS-DOS TABLE, Windows 7 and Linux Mint on /dev/sda I try to boot the Windows 7 partitions with grub2 from Ubuntu ...
3
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2answers
980 views

encrypt multiple systems (Windows 7 + deb)

I've installed two operating system on single drive with 3 partitions (#1 Windows 7, #2 Debian Squeeze, #some data). Grub 2 is installed in MBR and lets me choose which system to boot. I would encrypt ...
3
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3answers
11k views

Make GRUB automatically boot Ubuntu

I am running a dual-boot with Ubuntu (10.10) and Windows 7. Recently I edited my /boot/grub/grub.cfg file to only show one version of Ubuntu (as opposed to several kernel versions) and Windows, simply ...
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votes
2answers
5k views

“Reinstalling” the Windows 7 boot manager

I've run into an interesting predicament. I've got two HDD's, one running Windows XP (Primary) and another running Windows 7 (Secondary). I recently installed Gentoo over the XP installation and used ...
3
votes
1answer
958 views

Bootloader issue - How do I completely remove Linux from my system? fully detailed description

The goal was to successfully install Windows 10 upgrade. System configuration : Dell Inspiron 3537, i5 4th gen processor, 6GB RAM, 1TB HDD, 2GB AMD Graphics. Before install : I have a Dual-boot ...
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1answer
1k views

Does rebuilding the BCD affect the MBR?

I'm dual booting Linux Mint and Windows 7, and windows 7 is having a "device inaccessible" error preventing it from booting. I'm using grub for my MBR. From what I understand, the BCD is what ...
3
votes
3answers
918 views

How to replace GRUB boot loader, from within Windows?

I have dual boot (Debian and Windows XP), and the boot is from GRUB. I want to remove Linux and grub, and restore the Windows boot. However, I cannot use installation CD to restore the MBR. Thus, I ...
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2answers
486 views

Grub; Usb keyboard works sometimes, not always

If I wait for grub to startup and I do nothing, the usb keyboard will not work and the computer never boots into anything. If I use the usb keyboard to enter into bios and then exit it, or if I just ...
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2answers
69k views

How can I fix a “no such partition Grub Rescue” error? [duplicate]

Earlier I installed Ubuntu 10.04 from a USB flash drive. Since the system was unable to detect Ubuntu in the initial menu that appears on reoboting, I deleted the partition onto which I had installed ...
3
votes
1answer
1k views

Installing Windows 7 on a dual boot machine

My current setup is a dual boot of XP and Ubuntu 9.04. Installed Ubuntu after XP and dual booting with GRUB. I want to install Windows 7 now to make it a triple boot system without disturbing my ...
3
votes
1answer
4k views

Ubuntu Server 14.04 LTS - GRUB fails to install on a VM

I'm trying to install and run Ubuntu Server 14.04.1 LTS on a VirtualBox for testing purposes. However, I can't even pass the installation process without errors, and it will fail to install the GRUB ...
3
votes
1answer
438 views

Problems with Windows boot loader and Grub. How to make one primary and the other secondary?

I had a working Windows 7 + Ubuntu 10.10 setup where my primary boot loader was that of Windows 7 and from there when I went on Ubuntu, it took me to Grub. When I updated to Ubuntu 11.04 it made Grub ...
3
votes
2answers
4k views

Fixing bad Windows partition and startup with Linux

Here is what happened: Don't have enough space on my Windows partition Delete the stock "recovery" partition to make space Enlarge the Win partition Software messes up the Windows boot Go under ...
3
votes
4answers
9k views

Remove windows 7 entry from grub

I recently installed ubuntu 10.04 LTS and formatted my windows 7 hdd, but the windows 7 entry is still showing in grub. How can I remove the entry from grub? Greetz
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1answer
1k views

How To Remove/Add Windows Options from Boot Loader

I am having windows vista and ubuntu operation system on my laptop . I just want to remove that option from my boot loader ( grub ) and i need to know how add back that option. I would like to Do ...
3
votes
1answer
92 views

Reinstall GRUB, which device to use?

Earlier today my computer's boot drive had Windows 10 and Ubuntu 16.04 installed quite happily on it. I could choose whether to boot Ubuntu or Windows via GRUB. I was also able to launch Ubuntu as a ...
3
votes
1answer
825 views

Change the keyboard layout of GRUB in stage 1

I installed grub on a EFI based system. So I have the EFI partition on /dev/sdc2 and my LUKS container in /dev/sdc5. I have only one linux partition in the LUKS container. So even /boot with the stage ...
3
votes
1answer
2k views

GRUB2: /boot as BTRFS subvolume

Aside from /boot, all my partitions (including root, /) are BTRFS subvolumes. I'm switching to BTRFS RAID1, and for the sake of integrity, want to include /boot within the BTRFS partition. Preferably ...
3
votes
1answer
11k views

how do I fix a wrong UUID in grub.cfg?

I run Debian Wheezy alone on my PC and I recently copied the root partition to another with rsync as I found that worked well (I also know about dd and ddrescue but they leave unusable space on the ...
3
votes
1answer
191 views

Dual boot GRUB error

I recently vacuumed my computer, and when I turned it on afterwards I got a grub error saying no such device. I have a 80 Gb SSD running Win 7 and a 500 Gb spinny where Ubuntu wa installed. When I ...
3
votes
2answers
1k views

Laptop gets GRUB error 21 when turned on without external hard drive (w/ Linux) attached

I have Windows Vista on my notebook's internal hard drive and Kubuntu Linux on the external hard drive. My notebook has lost all portability because it cannot boot into Windows without the external ...
3
votes
2answers
6k views

How to disable GRUB boot menu and boot in default OS

I have Windows 7 and Ubuntu 10.04 installed on my system. I want to configure GRUB so that it automatically boots into the default OS without displaying the boot menu; it should only appear if I ...
3
votes
1answer
2k views

Clonezilla disk to disk clone on a dual boot ubuntu karmic & XP setup - cannot open '/boot/grub/device.map'

I just tried to clone a failing existing boot drive for a dual boot system with Ubuntu karmic and Windows XP installed using Clonezilla. The cloning worked fine right up until the end when I got the ...
3
votes
4answers
398 views

Why does Ubuntu 9.04 console not work with Windows 7 Windows Virtual PC?

Here's a screen shot of my console in an Ubuntu 9.10 desktop live CD installed onto a Windows 7 Windows Virtual PC machine, and then stripped of the X/gnome environment: Note that the Grub part ...
3
votes
2answers
4k views

Installing bootloader (GRUB) on a logical partitions?

Is it possible to install GRUB on a logical partition? The partition is just 200 to 400 MB space?
3
votes
1answer
1k views

Windows 8 won't boot after rewriting partition table

I was recovering a deleted partition using Testdisk to rewrite the partition table. However after that, windows 8 refused to boot up. On boot, I am presented with an blue screen saying that there was ...
3
votes
1answer
460 views

Is it currently stable to use, and boot to, a btrfs RAID 0 on SSDs?

As of the current (3.10+) Linux kernels, is it supported to make a btrfs RAID 0 out of SSDs the root mount and boot to it? This comprises several issues: Does the RAID 0 with SSDs support TRIM/...
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votes
3answers
3k views

Can I use the TPM on linux without TrustedGrub?

I'd like to use the TPM to secure my boot process for my linux laptop. Any manual, howto or tutorial I have found about this topic mentions I have to use the TrustedGrub bootloader to keep up the ...
3
votes
1answer
2k views

Installed Lubuntu as dual boot to Windows 7 and now Windows won't load

Last year when I installed an SSD in my laptop, I partitioned off a few GB to try dual booting to Linux. At the time, I was able to set up Ubuntu on that partition and used EasyBCD to manage the boot ...
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3answers
2k views

Windows installed on second partition, how to add it to boot menu?

I'm using Debian 6.0.6 Squeeze at the moment, I installed it over Windows XP. It's just one hard drive where I first installed Windows XP and than used some Windows tool to make partition where I ...
3
votes
1answer
6k views

Error - unknown filesystem grub rescue - Can't boot from any other media whatsoever

So I've been trying anything and everything under the sun to fix this problem. Have a lenovo Y570 laptop and decided to duel boot linux mint alongside windows 7. I partitioned some space on the ...
3
votes
4answers
8k views

GRUB error: unknown filesystem

I replaced my old laptop drive which was win7 and ubuntu dual boot with an SSD. Now I connected the old drive through a USB adapter and I want to boot from it. But this comes up: unknown filesystem ...
3
votes
3answers
6k views

Windows 7 Pro x64 hangs on boot when loading classpnp.sys [duplicate]

Don't know what happened but this happens almost every time I boot. Never happened before a couple days ago and I haven't even done anything. Computer powers up, GRUB (From fresh Ubuntu 11.04 install)...
3
votes
1answer
2k views

How to boot Debian Testing when grub_env_export symbol not found?

After a recent run of apt-get dist-upgrade and subsequent reboot, I get just: GRUB loading. Welcome to GRUB! error: symbol not found: 'grub_env_export'. Entering rescue mode... grub rescue> ...